should be possible to implement function Window such way, where the caption parameter could be in form 'Part of Window capt *' ? With asterisk at end of string. So to be possible find window if I know only part of its name?

Sure, that's possible. But I don't have so much time to work on madKernel these days. And it should be easy enough for you to implement it yourself. Just enumerate through all windows and use "madStrings.TextMatch".